22035643 has 12 divisors (see below), whose sum is σ = 25842432. Its totient is φ = 18733680.

The previous prime is 22035623. The next prime is 22035647. The reversal of 22035643 is 34653022.

It is a happy number.

It is not a de Polignac number, because 22035643 - 2⁹ = 22035131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22035647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4453 + ... + 7993.

It is an arithmetic number, because the mean of its divisors is an integer number (2153536).

Almost surely, 2^22035643 is an apocalyptic number.

22035643 is a deficient number, since it is larger than the sum of its proper divisors (3806789).

22035643 is a wasteful number, since it uses less digits than its factorization.

22035643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3682 (or 3675 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 22035643 is about 4694.2137786854. The cubic root of 22035643 is about 280.3551742782.

Adding to 22035643 its reverse (34653022), we get a palindrome (56688665).

The spelling of 22035643 in words is "twenty-two million, thirty-five thousand, six hundred forty-three".